Preheat oven to 350°. Peel and cut the sweet potatoes in half. In a large saucepan or dutch oven, bring pot of salted water to a boil and drop in potatoes. Cook potatoes until tender, about 30-40 minutes. Drain and allow the potatoes to cool slightly.

Meanwhile, in a small saucepan, bring the syrup, brown sugar, butter and salt to a boil over medium heat. Simmer 5 minutes, and remove from heat.

Slice potatoes into 1”slices. Place potatoes in a casserole dish, and pour the syrup over to coat the potatoes.